1255622237 has 2 divisors, whose sum is σ = 1255622238. Its totient is φ = 1255622236.

The previous prime is 1255622197. The next prime is 1255622243. The reversal of 1255622237 is 7322265521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701773081 + 553849156 = 26491^2 + 23534^2 .

It is an emirp because it is prime and its reverse (7322265521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255622237 - 2⁸ = 1255621981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255622197 and 1255622206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255622267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627811118 + 627811119.

It is an arithmetic number, because the mean of its divisors is an integer number (627811119).

Almost surely, 2^1255622237 is an apocalyptic number.

It is an amenable number.

1255622237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255622237 is an equidigital number, since it uses as much as digits as its factorization.

1255622237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 35.

The square root of 1255622237 is about 35434.7602926844. The cubic root of 1255622237 is about 1078.8299620135.

Adding to 1255622237 its reverse (7322265521), we get a palindrome (8577887758).

The spelling of 1255622237 in words is "one billion, two hundred fifty-five million, six hundred twenty-two thousand, two hundred thirty-seven".